const headerEl = document.querySelector("header");
const scrollToTop = document.querySelector(".scrollToTop");
window,
  addEventListener("scroll", () => {
    let height = headerEl.getBoundingClientRect().height;

    if (window.pageYOffset > 2000) {
      scrollToTop.style.display = "block";
    } else {
      scrollToTop.style.display = "none";
    }
  });


const captionsEl = document.querySelectorAll(".slide-caption");




const staggeringOption = {
  delay: 300,
  distance: "50px",
  duration: 500,
  easing: "ease-in-out",
  origin: "bottom",
};

ScrollReveal().reveal(".feature", { ...staggeringOption, interval: 350 });
ScrollReveal().reveal(".service-item", { ...staggeringOption, interval: 350 });




const scroll = new SmoothScroll('nav a[href*="#"],.scrollToTop a[href*="#"]', {
  header: "header",
  offset: 80,
});

document.addEventListener("scrollStart",()=>{
    if(headerEl.classList.contains("open")){
        headerEl.classList.remove("open");
    }
})



//折叠按钮
const burgerEl = document.querySelector(".burger");
burgerEl.addEventListener("click",()=>{
    headerEl.classList.toggle("open")
})

//创建和初始化地图函数：
function initMap(){
  createMap();//创建地图
  setMapEvent();//设置地图事件
  addMapControl();//向地图添加控件
  addMarker();//向地图中添加marker
}

//创建地图函数：
function createMap(){
  var map = new BMap.Map("dituContent");//在百度地图容器中创建一个地图
  var point = new BMap.Point(119.176895,26.072713);//定义一个中心点坐标
  map.centerAndZoom(point,17);//设定地图的中心点和坐标并将地图显示在地图容器中
  window.map = map;//将map变量存储在全局
}

//地图事件设置函数：
function setMapEvent(){
  map.enableDragging();//启用地图拖拽事件，默认启用(可不写)
  map.enableScrollWheelZoom();//启用地图滚轮放大缩小
  map.enableDoubleClickZoom();//启用鼠标双击放大，默认启用(可不写)
  map.enableKeyboard();//启用键盘上下左右键移动地图
}

//地图控件添加函数：
function addMapControl(){
  //向地图中添加缩放控件
var ctrl_nav = new BMap.NavigationControl({anchor:BMAP_ANCHOR_TOP_LEFT,type:BMAP_NAVIGATION_CONTROL_LARGE});
map.addControl(ctrl_nav);
  //向地图中添加缩略图控件
var ctrl_ove = new BMap.OverviewMapControl({anchor:BMAP_ANCHOR_BOTTOM_RIGHT,isOpen:1});
map.addControl(ctrl_ove);
  //向地图中添加比例尺控件
var ctrl_sca = new BMap.ScaleControl({anchor:BMAP_ANCHOR_BOTTOM_LEFT});
map.addControl(ctrl_sca);
}

//标注点数组
var markerArr = [{title:"公司地址",content:"我的备注",point:"119.17482|26.072226",isOpen:0,icon:{w:21,h:21,l:0,t:0,x:6,lb:5}}
];
//创建marker
function addMarker(){
  for(var i=0;i<markerArr.length;i++){
      var json = markerArr[i];
      var p0 = json.point.split("|")[0];
      var p1 = json.point.split("|")[1];
      var point = new BMap.Point(p0,p1);
var iconImg = createIcon(json.icon);
      var marker = new BMap.Marker(point,{icon:iconImg});
var iw = createInfoWindow(i);
var label = new BMap.Label(json.title,{"offset":new BMap.Size(json.icon.lb-json.icon.x+10,-20)});
marker.setLabel(label);
      map.addOverlay(marker);
      label.setStyle({
                  borderColor:"#808080",
                  color:"#333",
                  cursor:"pointer"
      });

(function(){
  var index = i;
  var _iw = createInfoWindow(i);
  var _marker = marker;
  _marker.addEventListener("click",function(){
      this.openInfoWindow(_iw);
    });
    _iw.addEventListener("open",function(){
      _marker.getLabel().hide();
    })
    _iw.addEventListener("close",function(){
      _marker.getLabel().show();
    })
  label.addEventListener("click",function(){
      _marker.openInfoWindow(_iw);
    })
  if(!!json.isOpen){
    label.hide();
    _marker.openInfoWindow(_iw);
  }
})()
  }
}
//创建InfoWindow
function createInfoWindow(i){
  var json = markerArr[i];
  var iw = new BMap.InfoWindow("<b class='iw_poi_title' title='" + json.title + "'>" + json.title + "</b><div class='iw_poi_content'>"+json.content+"</div>");
  return iw;
}
//创建一个Icon
function createIcon(json){
  var icon = new BMap.Icon("http://app.baidu.com/map/images/us_mk_icon.png", new BMap.Size(json.w,json.h),{imageOffset: new BMap.Size(-json.l,-json.t),infoWindowOffset:new BMap.Size(json.lb+5,1),offset:new BMap.Size(json.x,json.h)})
  return icon;
}

initMap();//创建和初始化地图
